Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Alan Z. Ullman0
Jeffrey J. Voelker0
Joel E. Anspach0
Date of Patent
November 8, 2011
0Patent Application Number
119417160
Date Filed
November 16, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A system and methods for broad area visual obscuration around a platform. In one embodiment the system comprises a source of visible light, shaping optics and projecting optics. The system projects a light beam onto an illumination area in a sweeping pattern to repetitively illuminate all portions of the illumination area, such that a stationary observer within the illumination area receives repeating pulses of the light at a power, intensity, frequency and duration sufficient to visually impair the observer so as to substantially prevent the observer from discerning the platform between pulses. The light pulses are capable of temporarily blinding human eyes but incapable of causing permanent vision loss.
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